Hugin and multiple GPU

Software Hugin
1

I upgraded from GTX 1060 to RTX 2080. Is Hugin able to use both my cards? When I tried yesterday it only used RTX 2080.

2

I don’t think so. GPU support is still experimental, isn’t it?

3

I have no idea what it does and how to find out but I have a dual graphics system (Intel + Nvidia) and I noticed recently that Hugin is much faster than earlier. I start Hugin with “optirun hugin” as I use bumblebee in Linux. Without optirun I think hugin cannot even start on my system, it crashes.

Edit: Without GPU hugin used to need like 10 minutes for a panorama and now it needs 10 seconds or so, and I don’t even have fast GPUs.

4

It is.

5

10 seconds seems very fast. Just a few pictures stitched together?

6

Yes. Though I have to admit that I did not measure the time. Maybe it was not 10 but 20 oder 30 seconds but in any case it is much faster than without resp. with one Intel GPU. Basically it was just maybe like 4 photos that were stitched togther.

7

Explains the time. I normally stitch 12-50 ^^

14000×5473 11.1 MB

75 Mpix downscaled from 225 Mpix.

8

Ok maybe I should also mention that I have installed the Intel Neo Opencl driver, and of course the Nvidia, too.

9

Digging out a very old thread… I haven’t used hugin for a while and today I realize it is SLOOOOOOWWWWW :slight_smile:
media-gfx/hugin-2024.0.1
media-gfx/enblend-4.2.0_p20240424

both are the latest and greatest on gentoo, no dev-version available and seems no any opencl-support (even nothing in the settings to be found, or I oversaw)

Stitching 4 pics with 24mpix runs for minutes on my i9-9900K CPU and two idle GPUs (GTX1060 and RTX2070super)

10

Obviously opencl is off (but there was times it could be switched on) and gentoo does not offer the opencl USE-Flag :frowning:

$ enblend -v -V

enblend 4.3-e87da60fab22

Extra feature: OpenMP: yes
  - version 2015-11
  - support for dynamic adjustment of the number of threads;
    dynamic adjustment disabled by default
  - using 16 processors and up to 16 threads
  - allocating thread-local dynamic memory with malloc/free
Extra feature: OpenCL: no
Extra feature: metadata (EXIF, IPTC, XMP) transfer: no

Copyright (C) 2004-2009 Andrew Mihal.
Copyright (C) 2009-2017 Christoph Spiel.

License GPLv2+: GNU GPL version 2 or later <http://www.gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Andrew Mihal, Christoph Spiel and others.
11

found this:

:frowning: